Correlation of Nano Titanium Dioxide Synthesis and the Mineralogical Characterization of Ilmenite Ore as Raw Material oleh Yayat Iman Supriyatna, Widi Astuti, Slamet Sumardi, Sudibyo, Agus Prasetya, Lavita Indriyani Ginting, Yuyun Irmawati, Nining Sumawati Asri, Himawan Tri Bayu Murti Petrus